Anyone out there who gets Botox injections, this question is for you:  I notice unusual "dents" or "flat spots" in my forehead, whenever my Botox begins to wear off.  I also notice that when I lie on a massage table face down, that if the towel has some folds in it, that the "fold marks" stay imbedded on my forehead for hours afterward.  This only happens when the Botox wears off. Has anyone else had this kind of thing happen to them?  Does anyone know why it happens?